Steam-boiler



3 Sheets-Sheet 2. G. V. SLOAT.

STEAM BOILER. v v

Patented Dec. 219, 1891.

(No Model.)

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W/TNESSES:

` BSheets--Sheet 3. G; V. SLOAT. STEAM BOILER..

(No Model.)

W/TNESSES:

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UNITED STATES PATENT. OFFICE.

GEORGE V. SLOAT, OF RUTI'IERFORD, NEV JERSEY.

STEAM-BOILR.

SPECIFICATION forming part of Letters Patent No. 466,191, dated December29, 1891.

Application led July 16, 1891. Serial No. 399,720- (No model.) l

To all whom it may concern:

Be it known that I, GEORGE V. SLOAT, a citizen of the United States,residing at Rutherford, in the county of Bergen and State of New Jersey,have invented new and useful Improvements in Steam-Boilers, of which thefollowing is a specification.

This invention relates to an improvement in steam-boilers; and itconsists in the details of construction set forth inthefollowingspecification and claim and illustrated in the annexed drawings, inwhich- Figure 1 is a front elevation of the steamboiler. Fig. 2 is asection along x Fig. l. Fig. 3 is a section along y y, Fig. 2. Fig. 4 isa section along e e', Fig. 3. Fig. 5 is a section along z e', Fig. 2.Fig. 6 is a section along u u, Fig. 5. l

In the drawings, the letter A indicates the main shell or body of theboiler, and Bis the rear water-space. Tubes C extend from the rearwater-space to the front Water-space D. These tubes are inclined, asshown, to facilitate circulation. A connecting tube or pipe E leads from.the lower part of the main shell to the lower part of the rearwater-space B. Vhen the grate F is provided with fuel and the latter islighted, the flame passes to the rear of the shell A and thence throughthe iues G to the chimney. In its passage rearward the flame strikes theconnecting-tubeE and heats the water in the same, thus causing theheated Water in the tube to rise directly into the main body of theboiler,while the colder water flows from the base of the rearwater-space D into the tube, thereby maintaining a continuouscirculation. In this respect my invention differs substantially from aprior construction, in which horizontal tubes connect the verticalportion of a water-containing shell with a hollow box ar- The tubes C uhave their ends placed opposite thehand-hole covers H, so that byremoving said covers the tubes can be cleaned. In Fig. 1 the handholecovers are seen in face view, and by having one cover for two tubes thenumber of covers is diminished, so that less labor is involved insecuring the covers than there would be in case there were a separatecover for each tube. Through the furnace-doors I enable the grate to besupplied with fuel.

What I claim as new, and desire to secure by Letters Patent is- In asteam-boiler, the combination, With the main boiler-shell A, having afront Waterspace D and a rear water-space B, of the connecting-tubes O,arranged in a gang one above the other at each side of the mainboiler-shell and inclining from the front to the rear water-space, andthe tube E, leading downward direct from the base of the mainboiler-shell at the rear end thereof to the base of the rear water-spacefor the circulation of water direct from the tube into the 'rear end ofthe main boiler-shell, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

GEO. V. SLOAT.

Witnesses:

WM. C. HAUFF, E. F. KASTENHUBER.

